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Women's Foundation Short

77 % of 100
Foundation is an incredibly comfortable padded women's undershort, designed to cushion beneath baggies during done-in-a-day rides, or while taking in new terrain over extended trips.

Have a question? We'd love to hear about your next adventure.

Model is: Height 5’7”, Hip 36.5” Thigh 21" and wears a small.


Think of the Foundation as a base layer for the bike. Made with an airy, open mesh and an innovative, free-feeling chamois, Foundation invites refreshing airflow right where it’s needed most, and dries fast under intense efforts in hot conditions.



  • Body: 78% nylon, 22% elastane
  • Contrast: 77% nylon, 23% elastane
  • Chamois: Elastic Interface Womens Performance Force (Made with recycled content)


  • Women’s: 110g


  • Highly breathable open mesh
  • Women's Performance Force chamois with low bulk front and side for invisible feel
  • Clean cut hem with silicon gripper



  • X-Small: 4” - 10.2cm
  • Small: 4.3” - 10.8cm
  • Medium: 4.5” - 11.4cm
  • Large: 4.8” - 12.1cm
  • X-Large: 5” - 12.7cm

Care Instructions

  • Machine Wash Cold in a wash bag to prevent damage from velcro/zippers etc
  • Do Not Bleach
  • Do Not Iron
  • Hang To Dry
  • Do Not Dry Clean
Crash Replacement

Crash Replacement

Hit the hills and go full out on the flats without worrying about keeping the rubber side down. To ease your mind and stay focused on the ride, we offer a Crash Replacement Policy.

Skin Fit

Skin Fit

Products that blend performance fabrics with highly articulated patterns to create a close-fit that feels like an extension of your body. Skin Fit apparel improves aerodynamics, moisture management and thermal efficiency.

  1. "You can wear anything, but unless you’re made from iron, you’re going to want a little something between your body and the bike. That’s where the unglamorous, often unsung liner short comes in, and the 7esh Foundation Short is ready to be your new best friend this summer."

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Product Reviews

  1. Comfy and light

    love how light these are

    These are great for summer mountain bike days when you want more padding, but need to stay cool!
  2. Kim

    I was in need of a new liner short and these do not disappoint.

    The mesh short itself feels a little flimsy (like nylons), but I’ve handled them with care and haven’t torn them yet! The padding is minimal but effective. I’ve done a few longer rides without any chaffing so they are doing their job. So far, I’ve been comfortably wearing these under ...

  3. b3xx

    Low rise chamios?

    It is my bad that I didn't clue in that the images of the chamois show low rise. That is a concept I can't get behind, as I have grown accustomed to the chamois providing chaffing or rub protection on my lower back from the shell shorts and backpack. I was between sizes, and thankfully ...

  4. C

    Foundation Short is short on rise

    I wanted to love these, but the rise is way to short and they do not fit appropriately. I am normally a medium and I was in between a medium and large on the fit chart, so I went with medium. I should have gotten XL!!! I know that the covid-19 weight gain hasn't helped, but I haven't ...

  5. Carol

    Overall great. Sizing tricky.

    I bought these sight unseen after an excellent detailed review in the Adventure Journal (an excellent read, check it out). Overall they are as promised - super airy for hot and/or long rides, stronger than their lightweight-ness would seem, nice and cool. Quality for sure. The leg elastic is ...

  6. Eleanor

    Almost perfect undershort

    My brief was breathable undershort for multi-day cross country trips on the MTB. These come very close to being perfect but I think there are a few features to iron out. The mesh is very breathable, and not as delicate as I initially worried about when I got them out of the packet! I just take care ...


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